The idea is quite cliche. The links between the real world and the virtual world is a familiar concept in many contemporary genre fiction. An exemplary work is "The Matrix" trilogy. I think Summer Wars is a pastiche of themes from the real/virtual world concept, and there is nothing particularly fresh or original.

Some of the scenes are directed to resemble streaming video from Nico Nico Douga, with user comments crawling/appearing across the screen over the video footage. I don't think it's a great idea, though."

I am only slightly moved by the Hanafuda duel during the climatic scene. But it's not enough.

This script also has some inconsistencies and factual flaws. In this story, a Japanese-made spy satellite plays the role of the main mecha. Technically speaking, almost all of these satellites will burn out upon a reentry into Earth's atmosphere. In addition to that, no one can precisely control the impact point of a falling satellite.

[Characters: **+] They are all basically ordinary people like those of "The Girl Who Leapt Through Time" (2006). There's no moe, and not many attractive personalities, I feel.

[Animation (artwork and motion): ***] Only so-so for an anime movie. Nothing special.

[The performance of Voice-actors/actresses: **] Both protagonists: Mr. KOISO, and Ms.SHINOHARA are played by non-seiyu artistes. KAMIKI Ryunosuke is an experienced young actor. He was the lead actor in the movie "The Great Yokai War" (妖怪大戦争, 2005）and TV drama "Detective School Q"（探偵学園Ｑ）. His voice-acting experience, though, is still limited. SAKURABA Nanami is an idol actress. SAKURABA's performance need much more improvement.

[Music: **+] Not bad. But it is not edgy and the music doesn't stand out either.

In short, Summer Wars is just a bland piece of work (rather than a bad anime). I can't feel the edge for script, direction, and seiyu's performance. If you are interested in Summer Wars, It's worth waiting for the video streaming and/or packaged media release.---